1153420787 has 2 divisors, whose sum is σ = 1153420788. Its totient is φ = 1153420786.

The previous prime is 1153420769. The next prime is 1153420789. The reversal of 1153420787 is 7870243511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1153420787 - 2⁸ = 1153420531 is a prime.

Together with 1153420789, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1153420787.

It is not a weakly prime, because it can be changed into another prime (1153420789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576710393 + 576710394.

It is an arithmetic number, because the mean of its divisors is an integer number (576710394).

Almost surely, 2^1153420787 is an apocalyptic number.

1153420787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153420787 is an equidigital number, since it uses as much as digits as its factorization.

1153420787 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 1153420787 is about 33962.0492167360. The cubic root of 1153420787 is about 1048.7273430524.

The spelling of 1153420787 in words is "one billion, one hundred fifty-three million, four hundred twenty thousand, seven hundred eighty-seven".